Brick-machine



(No Mude.) 12 sheets-sheet 1.

S.' E. 'M0GfhEGORYl BRGK MACHINE.

Patented May 3; 1887.v

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(No Model'.)

` S. E. MGGREGORY,

BRIGK MAGHINE.

Patented May 3., 1887.

Inventor (No Model.) 12 Sheets-Sheet 3. S. E. MoGREG-.ORY-

BRICK MACHINE.

Patented May 3, 1887.

NA Firms. Pmwmwnpner. wmmm. n c.

(No Model.) 12 Sheets--Shet 4. S. E. MGGREGORY. BRICK MACHINE.

No. 362,102. Patented May 3, 1887.

(No Model.) 12 sheets-Sheen '5,

` S. E. MGGREGORY.

BRICK MACHINE Patented May, 1 887.

M e h S .V t 8 e .h S ww. Y. R 0 G E uw. G C. M R S. u d 0 M 0 m BRICK MAGHINE.

Patented May 3, 1887.

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, (No Model.) 12 sheets-sheet 7.-

' S. E. MGGREGORY.

BRIGK MACHINE.

V10.362,102. Patented May s, 1887.-

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(No Model.) 12 Sheets-Sheet S. y s. E. llvIQGrREGoRY.

BRICK MAGHINE.

No. 362,102. Patented May 3, 1887.

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S. E'. MGGREGURY.

BRIGK MAGHI E Patented May 3, 1887.

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i Witnesses (No' Model.) y I y12 sheets-sheen 1o. S. E. MOGREGORY.

BRUK MACHINE. No. 362,102. Patented May 3, 1887.

Witesse-s: l IW/Ve nier: 7W @f N. PEYERS, PhobLHholnnhor, Vlllhllfgm n. C.

s. E. MGRBGoRY. BRICK MAGHINB.

Patente 12 sheets-sheet 11.

d May 3, 1887.

(No M odeL) 12 Sheets-Sheet 12. S. E. MoG-REGORY.

BRICK MACHINE.

No. 362,102. Patented May 8, 1887.

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Wtesss: Inventor: MMACWZf-ypy 'PATENT OFFICE.

SAMUEL n. Meenneonr, or sfr. Louis, MssoUni.

BRICK-MACHINE.

SPECIFICATION forming part of LettersPatentNo. 362,102, dated B'Iay 3, 1857.

Application filed May 4, 1886. Serial No. 201,107.

(No model.)

To @ZZ whom, it may concern:

Be it known that I, SAMUEL E. MoGnnoonY, of St. Louis, Missouri, have made a new and useful Improvement in Brick Machines, of

which the followingis a full, clear, and exact description.

Certain features of the improvement about to be described are applicable to various forms of .brick-machines. The improvement, however, relates mainly to hydraulic brick-machines, and itis in connection with that type of brick-machine that the improvement is illustrated.

rllhe improvement consists, first, iu ythe means employed to facilitate the downward movementrof the lower plunger; second, in

the cushioning of the downward movement of,`

the lower plunger; third, in the mode of opening and clos-ing the exhaust-valve for the up-` per chamber; fourth, in the mode of regulating the amount of clay delivered into the molds;

fifth, in the mode of attaching the plunger and dust-shield to the piston of the hydraulic cylinder; sixth, in the mode of constructing the mold-frame and the mode of holding the mol-dv in the frame of the press; seventh, in the means for preventing the delivery of the el ay into the molds in the event the plungers fail to act; eighth, in the means for opening and closing .the high andlow pressure inlet-valves for the upper and lower chambers of the hydraulic cylinder; ninth, in the means-for opening the exhaust-valve of the lower chamber of the hydraulic cylinder; tenth, in the means for tripping the `exhaust and momentarily relieving the pressure yupon the.toggle as its arms are being moved from a perpendicular position;

eleventh, in the modeof balancing the high Figure 1 is a side elevation of the machine.

Fig. 2 is a side elevation looking at the opposite `side to that shown in Fig. 1. Fig. 3 is a horizontal section on line 3 3 of Fig. 1. Fig. 4 is a vertical section on the line 4 4 of Fig. 3. Fig. 5 is a vertical section on the line 5 5 of Fig. 3. Fig. 6 is avertical section ol thelower or hydraulic plunger and the parts therewith immediately connected. Fig. 7 isa plan of the chain belt and sprocket-wheels usedwin adjusting the lower plunger. Fig. 8 is a detail, being a side elevation of the loop upon thedust-protector for engaging the exhaustvalve-stem lever. Fig. 9 is a plan of the mold and mold-frame, the mold being in position, but the fastening-block being removed. Fig. 10 is apsection on the line 10 10 of Fig. 9. Fig. 11 is a section on the line 11 11 of Fig. 9. Fig. 12 is a plan of the block used in holding the mold inthe mold-frame. Fig. 13 is a vertical section on the line 13 13 of Fig. 12. Fig.

14 is avertical section on the line 14 140 Fig.

12. Fig. 15 is a vertical section of the charger. The lower plunger and parts therewith connected are shown in side elevation. Fig. 16 shows the parts of Fig. 15 in a different position, the-,charger-bottom being unlatched from the charger. Fig. 17 is a plan of the chargerbottom-latch mechanism. Fig. 18 is a plan of the charger, a portion of thc top being broken away. Fig. 19 is a vertical section on the line 19 19 of Fig. 15. Fig. 2() is a side elevation of the mechanism for opening and closing the main inlet-valve. Fig. 21 is aside elevation for opening and closing the main exhaust-valve. Fig. 22 is an edge View of the disk shown in Fig. 20. Fig. 23 isa plan ofthe lever used in operating the main inlet-valve stem. Figs. 24, 25 are details, being various views of parts of the mechanism shown in Fig. 21. f Fig. 26 is a vertical section, upon an enlarged scale, of either the main or the small inlet-valve. Fig. 27 is a horizontal section on the line 27 27 of Fig. 26. Fig. 28 is a vertical section of either one of the exhaust-valves. Fig. 29 is a horizontal section on the line 29 29 of Fig. 28. Fig. 30 is a vertical transverse section of the machine. Fig. 31 is a vertical section, upon an enlarged scale, on the line 31 8o il TCO 31 of Fig. 32, of the sub-plungers of the upper and lower plungers, respectively. The view .includes a portion of the adjacent construcline 32 32 of Fig. 30. Figs. 33 and 34 are respectively a side elevation and plan of the upper end ot' the lower plunger. Fig. 35 is a view in perspective of the mold foi-.common brick. Fig. 36 is a view in perspective of the mold having the appliances used in making ornamental brick. Fig. 37 is a view in perspec-tive of one of the appliances shown in Fig. 36. Fig. 3S is a central vertical section of the mold. Figs. 39 and 40 are views, respectively, of one of the side pieces and one of the cross-pieces of the mold. Fig. 41 is a vertical section of one of the sub-plungers vof the lower plunger. Fig. 42 is a vertical section of one of the sub-plungers of the upper plunger. The same letters of reference denote the same parts.

The frame-work, as welt as many of Vthe working parts of the machine, being such as substantially exhibited in hydraulic brick-machines-such, for instance, as described in.

Letters Patent granted McGregory and Koch DecemberA '22, 1885, No. 332,814-it is not deemed necessaryin the present specification to describe any but those paris of' the construction with which the present improvement is immediately connected.

A, Fig. 6, represents the lower plunger of the press, and A represents the cylinder in Awhich the plunger works. This plunger is moved upward by hydraulic pressure in the usual manner; but in theplace of relying upon, the force of gravity to restore it to its original position, as hitherto Vhas been customary, the downward movement of the plunger is accelerated by the application of hydraulic force. To this-end the plunger atv a point above its lower end is made smaller in diameter than at its lower end, a, for the'purpose of forming an annular chamber, A2, which extends around the narrower portion, a', of the plunger and above the larger portion, a, of the plunger. Tater under pressure is let into this chamber by means of a valvular system, hereinafter de scribed, and by reason of such introduction the plunger is forced downward in the cylinder A more rapidly than when it is allowed to` drop by its own weight. `The water-'pressure at the upper end of the chamber A2 is confined by the ring A2 and packing a2, and at the lower end of the chamber the water-pressure upon the portion a of theplunger and the packing a2 prevents the escape of the water past the portion a. At the vsame time the water in the chamber A2 beneath the plunger is exhausted rapidly, by reason of the accelerated downward movement of the plunger, as described. The upward and downward movement of the plunger A is utilized for opening and closing the exhaust-valve for the chamber A2. The valve-chamber B of-'this eX- haust-valve B is attached to the cylinder A', and the water is admitted to the chamber A2 through the passage b. The water isalso eX- hausted from the chamber A2 through the same passage. The inverted-bowl-shaped part or dust-protector C for t-he plunger A, and which is attachedto the plunger inthe manner hereinafter described, just before the plunger in its downward movement reaches its lowest limit, strikes the set-screw b', which is screwed into the inner end of the lever b2. This lever is pivoted at b2 to a suitable bearing, b4, and its outer end is connected with the stem b5 of the valve B. A spring, b", acts to lift the outer end of the lever b2, and thereby to unseat the valve B and to hold it unseated untilA the loop c, that is attached to the protector C, by reason of the upward movement of the lower plunger, engages the inner end of the lever b. The inner end of the lever is then drawn upward against the action of the spring .11 and the valve B is seated, and the loop holds it seated while the charger goes forward, and' at the end of its stroke the inletvalve for the upper chamber, A2, opens by the action of a toe or lever, m, Fig. 2, upon the charger ro ek-shaft m', and admits the water into the upper chamber, A2, through the side` pipe, m2, Figs; 2, 3, and 6, and passageway b. As soon as this same water-pressure reaches and acts upon the exhaust-valve B', it holds that valve seated against the action of the s )ring 56 and as the luneer moves downward l e i b the loop c releases lthe lever b2, and the water- 9 pressure alone holds the exhaust-valve B down until it is again raised by the downwardv action ofthe plunger engaging the set-screw b-.

To' enable the seating and unseating of the valve B to be accurately effected, the mechanism for operating the valve is made adjustable at several points. screwed more or less into the innerend of the lever b2. The outer end ofthe lever b2 is connected withthe valve-stem b5 by means of the nuts b2, and by adjusting these nuts upward and downward upon the valvestem the point of connection of the lever b2 therewith can be fixed as desired, and by means of the nuts bS the loop c canbe adjusted vertically upon the protector C, andthe loop c and lever b2 thereby relatively adjusted. Provision is made for cushioning the downward movement of the plunger. The plunger A is chambered ont at a* to receive a spring of rubber or metal, D, which is upheld within the chamber a* by means of a screw, d.

I OO

The set-screw b can be This screw is adapted to work in the stationy the screw d. By rotating the shaft d2 the screw d is raised or lowered, according to thedirectionin which the shaft is turned. By this means the plunger, so far as the lower limit of its stroke is concerned, can be readilyadjusted vertically. The joint around the screw d is vand the capacity of the molds is thereby in-` creased, and by terminating the downward movement of the plunger A at a higher level the capacity of the molds is correspondingly diminished.

In forming the upper chamber, A, in the4 cylinder A', it becomes necessary to use acylinder-head, such as'the ring A3. This ringis put on over the smaller end of the plunger A. This requires the dust-protector C, which is connected with the sub-plungers, to be made in a separate piece from the plunger A, and the dnstprotector C is secured to the plunger A in the following manner: Two stud-bolts, c', are screwed into the top of the plunger A, for which purpose the studbolts are provided with a squared collar, ci, to `which a wrenchcan be applied. The upper end of the stud-boltis slotted to ad mit a key, c3, which, after the studbolt is fixed in the plunger, is passed through a perforation, 0*, in the'lange of the protector C, and then through the stud-bolt, substantially as shown in Fig. 6. d The protector G, which supports the sub-plungers, is laterally `adjusted upon the plunger A, and, by the means described, is secured vertically-thereto. f yThe construction of the mold-frame will now be described. l Referring to Figs. 9, 10,A 11, E

represents the moldi'rame, which is madel in one piece. lts sides care extended `farenough to the front of the machine toleave an opening, e',-in front of the .position occupied by the molds E when in use, a little larger than the molds. This enables the molds, when itis desired to remove them from the machine, to

' `be slipped horizontally forward in the'moldframe into the space e', whence the molds cany be removedby lifting them out of the moldframe. 1

The molds" are placed and held in the moldframe by first droppingthem into the space e in the mold-frame, then slipping them horil the parts from spreading.

zontally rearwardly into their proper place e2 in the mold-frame,`and then fastening them in position by means of the block e3, which is inr serted in the space e' in front of the molds and made to bear against the molds, so as to tighten them in placeby means ofthe screws et, `which are screwed through the mold-frame against the front edge of the block ci. rThe block sais preferably in the form of a grating, as shown.

rlvhe bolt ci', which passes transverselythrough the grating and mold-frame. serves to keep The molds have a projection, e, which extends around the molds and iitsy into a corresponding groove in the mold-frame and grating. The mold frame also tapers slightly rearwardly, so that when `it is forced backward to its place in the manner described it will be wedged tightlyin its bearing in the mold-frame. In all brickpresscs or machines where the two plungers are recal power continues to act and to" deliver the -1 clay into the molds, and the mechanicallyactuated plunger continues to perform its duties, the clay in the molds willbecomeso compacted as to prevent the mechanical power `from forcing the plunger belonging to that power to the desired depth in the molds. In this event some part of the apparatus must break. To obviate this difficulty `I have con` trived a movable bottom for the charger F,

Figs. 15, 16, which supplies the clay to the molds. This bottom f remains rmly attached in its place in the charger until the hydraulic plunger A reaches a proper height, whereupon the plunger, or some part thereto attached,en counters and operates a latch, and thereby de taches `the charger-bottom j from the main portion ofthe charger and causes it to be kept from moving with the charger to be retained when that part is moved forward with its charge ot' clay. In Fig. l5 the sub-plungers ot'the plunger A are shown'partly entered into the molds E. e represents a lever pivoted at es to a brack et on the outside of the mold-frame.

The protector C ofthe lower plunger, A, is provided with a projection in which 4is a verticallyadj usted screw, e8. Just before the lower snbplungers'realch the level of the delivery-table the screw e encounters and lifts the inner endl oft-he lever el. The outer end of the lever c7 has a slotted connection, with thelatch el, The latch is pivoted at el? to the bracket e, and the lifting of the inner end of .the lever e7 causes the outer end, el", ofther latch toriseand tolift the outer end ot'a spring hook, e, and at the same ti me, and by means of the shoulder e, to engage the fixed hook el, which is fastened to the charger-bottom f.

The effect of the movement is to disengage the springliook from the fixed hook, so that it can pass over the fixed hook. Now, should the lower plunger, from any cause, fail to rise to its appointed limit, the bottom f will rremain latched tothe main part of the charger and will move forward with it, an'd in consequence no clay will be delivered into the molds; but, on the other hand, when the lower plunengaged from the xed hook, and the lixed liook and bottom are held by the latch, and the charger now moves forward over and from off the now stationary bottom f, and the clay is deposited in the molds in the usual n1anner. f f

The mechanism for `opening and closing the bigband lowfiiressure inlet-valves for the hy- :25 ger does rise properly, the spring-hookis disv and 23.

draulic cylinder A will now be described.V This mechanism is shown :more distinctly in Figs. 20, 22, 23.

G represents a circular plate fastened to the cam or main shaft g. Two curved plates, g g2, are fastened to the plate G at its periphery.

ga represents a lever pivoted to a bearing, g. One end of the lever g3 is provided with a pin, g5, which pin is designed to rest against the edge Vofplate G to keep it from moving too far in that direction, while the spring g8 keeps it from moving in the opposite direction. The outer end of lever g3 is rounded and comes in Contact with the plates g and g2. The other end, g, of the lever is forked to engage with the stem gT of the main inlet-valve H, the form ,of which inlet-valve is shown in Figs. 22 A spring, g8, Fig. 20, acts to depress the end g of the lever g3 and to seat the main inlet-valve, saving when the curved plates g gl are in the rotation of the plate G made to bear against the end of thelever g3. The valve remains unseated until the first curved plate, g, has passed the outer end of the lever g3, whereupon the valve is momentarily seated, after which it is unseated again by means of the second curved plate, g2. Y

The purpose of closing the valve momentarily, as described, is to facilitate the releasing from a perpendicular position the toggle used in operating the upper plunger.

. The plate G is provided with a part, g, whose shape is understood by reference to'Figs.

20 and 22, and whose function is to insure thel seating of the main inlet-valve at the time whenthe pin g5 of the lever g3 is opposite the interval between the curved plates g' g, during which the part y presses against the pin q5 and holds it back to its place against the cam-plate G. 'Thecur ved plates'ggl are made adjustable upon the plate G, so that they can beset around thereon to cause them to act upon the lever g3 at the proper time. The connection between the lever giand the main inletvalve stem is also, by means of the nuts g1, made an adjustable one.

The device for opening and closing the main inlet-valve I, Fig. 3, for the low pressure is substantially the same as that just described for operating the main high-pressure inletvalve, saving that the low-pressu re cam-plates g (partially shown in Fig. 2) are bolted to the main cam-plate g for working the toggleV K, Figs. 1, 2, in the place of a separate plate, as

in the case of the `high-pressure construction just described.

The opening ofthe exhaustyalve J, Fig. 21, for the lower chamber, A", of the cylinder A is accomplished by means of a-lever, j, Fig. 2l, upon the charger rock-shaft j. Vhen the charger has nearly reached the limit of its forward movement, the lever j engages the shoulder (preferably in the form of the set-nutf) of the valve-stem ja, and thereby lifts the exhaustvalve J, whereupon the plunger A falls. Whennear the lower end of its stroke, the dustprotector C strikes the set-screw jt, Figs. l, 3,

again to its former position.

upon the arm j of the belt-crank js. The other arm, jl, of this bell-crank, by means of the rod js, connects with another bellcrank, jg, Figs. 2l. The army'10 of thislast-named bell-crank is forked and bears upon the set-nuts j on the stem j3 of the exhaust-valve J, and operates to depress the valve-stem and seat the valve and keep it seated until the pressure from the cyl-v inder A again comes upon it, which acts to keep the valve closed until it is again opened temporarily by the lever Z3, Fig. 21. The spring j, Fig. 1, is only sufficiently strong to sustain the weight of the valve-stem j3 and the parts thereto attached for tripping the exhaust-valve and momentarily relieving the pressure upon the toggle K, Figs. ll, 2, when it is being pushed by the cams that operate the toggle, and which are not shown, vfrom a perpendicular position.

There is inserted in the right'hand camplate I a pin, Z, Figs. l and 21, which in the rotation of the cam-,plate enters a groove, Z', in a plate, Z, which is bolted to a lever, Z3. This last-named lever is pivoted to a bearing, Z, and when the pin Z passes through Athe .groove Z', the inner end of the lever Z3 is borne downwardfor a short time, after which it rises This movement of the lever Z3 in turn causes the valve-stem ja to be lifted, whereupon the water-pressure is Ymomentarily relieved in the chamber Awhile similar to the one that opens Ythe exhaust Valve J, Figs. l and 3, and it is kept open by means of the springm?, Fig. 2, until it is closed by the return of the lever in, The pressure upon the valve M will keep it closed until the lever m opens it again. The water is admitted through the pipe ma, Figs.'2 and 3. Between this inlet-valve M and the low-pressure accumulator (not shown) is a check-valve, N,

Figs. 3 and 5, which is closed by opening the high-pressure inlet-valve H, and kept closed until the high pressure is shut olf. Two accumulators are employed, one for the high pressure and one for the low pressure. There is a pump for each accumulator, the high-pressure accumulator being. weighted at four thousand pounds per square inch, and the low-pressure accumulator being weighted at two hundred pounds per square inch. The high pressure is used only for the finishing pressing. The pumps deliver into the accumulator, and are working continually, storing up the water at thevrequired pressure, so that the moment t-he valves are opened the plunger A works with-l IIO quired pressures, A general plan is provided for the inlet-valves, of which there are three, one high-pressure and two low-pressure inletvalves.

anced valve. ward and downward upon the valve is the same, the areas of the top It and the bottom h' being equal. The arrowsshow the direction of the ywater-current. In ylifting the valve it is only necessary to overcome the friction and the weight'of the valve and valve-stem; `but as soon as the valve 'leaves its seatthe pressure is transferred to the under side of the valve and it rises with great force. Its movement is cushioned by means of the rubber h2. The pressure is immediately transferred through the passages t? h* to the annular chamber h5,andk thence through the openings h6 into the chamber hlabove the valve, and the valve is again i balanced ready to'be pushed downward again.

yso

to be balanced for unseating.

ha, Fig. 26, is a ring tted into the opening hg in the valve-chamber shell. The opening is made large enough for the bronze valveseat lil? to pass through to its place, as shown. `The-packing h rests uponthe top of the ring he, and it is heldfdown thereupon by means of the plug h1", which is screwed into the valvechamber, as shown. The perforations It are in the lower end of the plug hm.` The valve stem gI works through the plug It, and it is packed by means of the packing It and plug JL, all of which, fork the purpose in View, is the most approved construction I know of.l The exhaust-valves B and J, Figs. l, 2, 3, and 6, are two in number, and are of the `general construction shown in Figs. 28, 29.` 'Ihecon-` struction is simpler than that of the inletvalve, the relief-passage and chamber being unnecessary, as the valve is not under pressure when it is being closed, andonly requires To prevent .the upper and lower plungers, which are actuated by two' independent powers, from coming any nearer together than the thickness of the bricky while the bricks are kbeing pushed from the molds and prevent them from being crushed thereby,hardened steel rods O O O O, Figs. 30, 3l, 32, 33, and 34, are inserted in the lower plunger, and also in the upper plunger, so

as tofbe opposite each other and so as to meet just when the pressing is completed. y At the same moment the toggleis released from pressure and pushed from a perpendicular by the i cams.` (Not shown.) Thesepins or rods O also aid in lifting the upper. plunger and preserving their relative distance apart While the bricks are being pushed from the molds.

E', Fig. 35, represents an ordinary ten-brick mold, such as is in commonuse, andwhich is kusually made of plates ofwrought-iron put together withtenons and mortises and dovetailed at the corners, and having the inside walls faced with steel. To make molded or out waiting for the pumps to get up the re-` A The construction of these valves is shown 1n Figs. 26 and 27. H represents a ball When seated, the pressure upornamental brick for cornices, die., the side plates, el, are removed and short sections e8 are introduced, as shown in Fig. 36. The sections at the inner end are shaped as desired, and they are held in place by the mold-frame; or, to make ythe same iirmer, a plate, e", can `be put on the outside of the sections es, (shown in Fig. 36,) and all held by the mold-frame, as previously described. The plates e, and also the plates el, have a projection, e, on the outside that iits into acorresponding groove in the mold-frame and block, as previously shown, and also shown in section in Fig. 38. In Fig. 4Q one of. the interior cross-pieces, eu,'is represented. The sections ci, as shown more distinctly in Fig. 37, are provided with tongues el? for the purpose of interlocking with the cross-pieces e, as shown in Fig. 36. Thusthe same mold, B', can be used in making both common and fancy brick.

Figs. 41 and 42 respectively represent a lower and an upper sub-plunger made to fit a mold such as is shown in Fig. 36.

A studbolt with a collar, au, is screwedinto the movable part a and the whole keyed to the main plunger, or they can be fastened in the manner shown in Fig. 42, the stud-bolt being screwed into the movable part al, as shown,

but being screwed to the main plunger Aby means of the nuts al, which, in turn, are held in the enlarged mortises au. The dowel-pins a15 are for the purpose of centering the parts al exactly. e

I claim o 1.t The combination of the plunger A, con structed to form, in conjunction with the cylinder A' and ring A?, the chamber, A?, with the passage b, the exhaust-valve Bn', the part C, the lever bi, and the valve-stem t5, substantially as described.-

2; The combination 'ol' the dust-protecting part C, adapted to operate the lever b, the

stem b5, and the valve B', substantiallyas and for the purpose set forth.

3. The combination of the part (l, the vertically-adjustable loop c, the pivoted lever b2, carrying the screw b', and the valve-stem bi, substantially as described. o v et. The combination, in a hydraulic brickmachine, of the cylinder A', the plunger A, the spring D, the nut d', and the screw d, the Spring,the nut, and screw being located within theplunger, substantially ask described.

5. The combination of thecylinder A', the 1 plunger A, and the spring D, interposed between the plunger and a support beneath the spring within the cylinder, substantially as described. o g f 6. The combination of the cylinder A', the plunger A, and the support d, said plunger only when itis lowered resting, either directly or indirectly, upon saidisupport, substantially p as described. n

7. The combination of the cylinder A', the plunger A, the spring D, the screw rl, the nut Ac y 362,1oz

.set-screw b', the passages b m3, the lever m,

and the rock-shaft m', substantially as described.

10. The lever b2, pivoted to the bearing b3v and at its ends, respectively, having a verti-.

' callyadjustable connection with the exhaustvalve stem and a part attached to the cylinder-plunger, substantially as described.

11. The combination of theplnnger A and the dust-protector C, carrying-the lower subplungers and made'reniovable from said plunger, substantially as and for the purpose d'escribed.

1'2. The combination of the plunger A, the dust-protector C, the stud-bolt c', and the keys c3, substantially as described.

13. The mold-frame E, extended to include the opening e', in combination with the mold E and a block for wedging the mold in its place within the mold-frame.

14. The mold-frame E, extended to the side y of the machine to include the opening e, to enable the mold to be moved sidewise in v'the Vmold-frame in placing it in or withdrawingit from the mold-frame.

15. The combination of the extended moldframe made in one piece, the mold, and the block e, adapted to fit within the mold-franie and hold the mold in position, as described.

16. The combination ofthe extended moldframe made in one piece, themold, the block e3, adapted to twithin the mold-frame and hold the mold in position, and the tie e5, substantially as described. I

17. The combination of the extended moldfranie E, the mold E', and the .block c3, said mold and mold-frame being relatively shaped to enable the mold to be wedged into its bearing in the mold-frame, as described.

18. The combination of the extended moldframe E, the mold E, the block e3, the block and mold itting within the moldframe, and the tightening-screws 6*, as described.

19. The combination of the mold-frame and molds, the plunger A, the lever e7, the latch el, shaped as described at e e, the spring# such as the iixed hook els, as and for the pur pose described.

23. 'Ihe plunger A, having a vertically-adjustable screw, for the purpose of moving the charger-bottom-detaining mechanism, substantially as described.

24. The combination of the mold E', the charger F, and the detachable bottom f, for the purpose described.

l 25. The combination of the plate G, carrying the plates g g2, the lever g3, the stein gl, and the inlet-valve H, substantially as y described.

26. The combination of the plate G, carrying the plates y g, the lever g3, the stem gl, the spring g5, and the inlet-valve H, substantially as described.

27. The combination of the plate G, carry- V'ing the plates g gi2 and the part y", the lever g3, the stem 97, and the valve H, 'substantially as described. 4

28. The combination of the plate G, having the plates g g2 and the party, the 'leverg3, lthe stem gl. the spring gs, and the valve H, as described.

29. rlhe cani-plate G, carrying the part gg, Vto -insure the seating of the valve when the pin g5 of the lever g3 is opposite the interval between the plates g g2, as described. p

30. The combination of the charger vrockshaft j', the lever j, the stem ja, having the shoulder j, and the exhaust-valve J, asidescribed.

31. The combination of the part C, the screw j, the=arm j, the bell-crank j, the rod js, -the bell-crank j, vthe stem j", and the valve J, as described. y

32. The combination of the valve J, Ethe stem ja, the `nuts j, the lever Z3, the groovfed .plate Z2, and the cam-plate L, carrying the pin l, as described. n,

33. The combination of thecam-plate L, the valve J, thecvalve-stem ja, and the pin Z with the-lever Z3 and the adjustable lplate l", as Vdescribed.

34. The combination-of the camplate L, the pinZ, the grooved plate l2,- vthe lever Z3, the stem ja, the bell-crank J9, the rod js, the lever j upon the shaft j', and the valve J, as described.

35. The combination of the inlet-valve M, 'the valve-stem 'and connections, thc lever m, the rock-shaft m', and the spring mi', as V'described.

36. The combination of the valve H, the passages h3 h4, and the chamber hl above the valve, as. and for the purpose described.

37. The combination ofthe valve H, balanced as described, the passages hf" ht, and the chamber hl, as described.

38. The combination ofthe valve H, the ring ha, the packing hu, the plug h,-tl1e stem gi, the

packing h, and the plug h, as described.

39, IIhe combination of the upper plunger, the lower plunger, and the stop-rods O O O O, attached directlyto said plungers respectively, as and for the purpose described.

40. The mold-frame having the sectionsl IOO Io5 I IIO provided with tongues to adapt them to be incut ofi" just as the toggle is to be moved from terloekefl both vertically and laterally with apcrpeudicular, as and for the purpose (lethe moldframe and its partitions, :is described.

scribed. SAMUEL E. MUGREGORY. 5 41. The combination of the cylinder A and Witnesses:

the toggle K, the water-supply te thc chamber C. l). MOODY,

A* Within said cylinder being adapted to be In. F. REX.

Correction in Letters Patent No. 362,102.

It is hereby certified that the name of the patentee in Letters Patent No. 362,102, granted May 3, 1887, written in the grant Samuel E. M. Gregory, whereas said name should have been written Samuel E. McGregmy; and that; said Letters Patent should be read with this correction therein that the same may conform to the record of the ease in the Patent Oee.

Signed, countersigned, and sealed this 3d day of December, A. D. 1889.

[SEAL] CYRUS BUSSEY,

Assistant Secretary of the Interior.

for au improvement in Brick-Machines, was erroneously Gountersigned:

C. E. MITCHELL,

Commissioner of Patents. 

